On Wed, Aug 12, 2015 at 9:05 PM, Nathaniel Smith <n...@pobox.com> wrote:
> On Aug 12, 2015 13:57, "Nate Coraor" <n...@bx.psu.edu> wrote: > > > > Hello all, > > > > I've implemented the wheel side of Nick's suggestion from very early in > this thread to support a vendor-providable binary-compatibility.cfg. > > > > https://bitbucket.org/pypa/wheel/pull-request/54/ > > > > If this is acceptable, I'll add support for it to the pip side. What > else should be implemented at this stage to get the PR accepted? > > From my reading of what the Enthought and Continuum folks were saying > about how they are successfully distributing binaries across different > distributions, it sounds like the additional piece that would take this > from a interesting experiment to basically-immediately-usable would be to > teach pip that if no binary-compatibility.cfg is provided, then it should > assume by default that the compatible systems whose wheels should be > installed are: (1) the current system's exact tag, > This should already be the case - the default tag will no longer be -linux_x86_64, it'd be linux_x86_64_distro_version. > (2) the special hard-coded tag "centos5". (That's what everyone actually > uses in practice, right?) > The idea here is that we should attempt to install centos5 wheels if more specific wheels for the platform aren't available? --nate > To make this *really* slick, it would be cool if, say, David C. could make > a formal list of exactly which system libraries are important to depend on > (xlib, etc.), and we could hard-code two compatibility profiles > "centos5-minimal" (= just glibc and the C++ runtime) and "centos5" (= that > plus the core too-hard-to-ship libraries), and possibly teach pip how to > check whether that hard-coded core set is available. > > Compare with osx, where there are actually a ton of different ABIs but in > practice everyone distributing wheels basically sat down and picked one and > wrote some ad hoc tools to make it work, and it does: > https://github.com/MacPython/wiki/wiki/Spinning-wheels > > -n >
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